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📜  分配此值,或者如果未定义此其他值 javascript 代码示例

📅  最后修改于: 2022-03-11 15:03:44.393000             🧑  作者: Mango

代码示例1
var x; //variable to change
var y; //higher priority variable
var z = 12; //lower priority variable
x = !(y === undefined) ? y : z;
console.log(x); //12